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ER11 1.5KW Square Air Cooled
110V/220V
10000-24000 RPM
4.3kg
Air Cooled
ER11
1.5KW
8A
242X90X105mm
The Zhong Hua Jiang square ER11 1.5kW air-cooled CNC spindle motor is designed for CNC router engraving, milling and controlled light cutting. The published product configuration specifies a 1.5kW (1500W) motor, 10,000–24,000 RPM, 400Hz operation and 110V/220V versions. Select a compatible VFD according to the ordered motor nameplate.
Its square housing and ER11 collet interface are intended for CNC builders, machine integrators and workshops working with wood, MDF, acrylic, PVC, PCB and suitable non-ferrous metals. Actual machining capacity depends on the cutter, workholding, feeds, cooling airflow and machine rigidity.
Supply scope: this page describes the spindle motor, not a complete spindle-and-VFD kit. The listed supply information includes an aviation cable and wrenches; a 400Hz-compatible VFD is required but is not listed as an included part.
Request 1.5kW Square Spindle Motor Pricing
Browse the Zhong Hua Jiang product catalogue to review related spindle motors, inverter options and CNC equipment.
CNC Router Machine Catalogue 2025 (PDF)
This spindle is suited to CNC machines that can support its square housing, motor mass and VFD-driven high-speed operation. Compared with a round-body spindle, it requires a suitable square-mounting arrangement rather than a conventional 65 mm round clamp.
The motor uses forced air cooling, eliminating the separate water tank, pump and coolant hoses required by water-cooled spindle installations. Cooling air should remain unobstructed, particularly in dust-producing machining processes.
For OEM buyers, machine builders and distributors, confirm ER11 toolholding, VFD supply voltage, motor mounting drawing, connector details and operating load before ordering.
The following values reflect the main published product data for the ER11 square variant. Confirm the motor nameplate and dimensional drawing for the final ordered model.
| Voltage | 110V / 220V (product versions) | 1 × 1.5kW square air-cooled spindle motor |
| Speed | 10,000–24,000 RPM | 1 × pre-soldered aviation cable; 2 × wrenches noted in product details |
| Power | 1.5kW / 1500W | A suitable 400Hz VFD is required; VFD is not listed as a standard package component |
| Current | 8A | |
| Frequency | 400Hz | |
| Listed motor weight | 4.3kg | |
| Collet interface | ER11 | |
| Cooling | Air cooled | |
| Application | CNC engraving and milling equipment |
Published overall dimensions: 242 × 90 × 105 mm. Request a current mounting drawing, including installation-hole positions, before machining a custom bracket. Confirm the delivered ER11 collet interface against the order.
Confirm ER11 Collet, Dimensions and VFD Compatibility
The 1.5kW square spindle is intended for CNC routers, small workshop mills and engraving systems. The illustrated application photographs show the types of work commonly associated with high-speed CNC spindle equipment; they are not cutting-capacity guarantees for a particular machine.
Suitable applications include lettering, decorative panels, signs, routing contours and relief engraving. Adjust cutter selection, chip evacuation and feed rates to the timber species, cutting depth and spindle operating range.
Acrylic sign making, plastic templates, engraving and profile work require suitable flute geometry, feeds and chip clearing. Avoid overheating that may melt or smear the material.
Light engraving and controlled passes on aluminum or brass may be possible with appropriate tooling, rigid workholding and conservative machining parameters. The achievable cut depends on the complete CNC machine, not motor wattage alone.
The main product identification specifies an ER11 spindle interface. Match the individual ER11 collet to the cutter shank and verify collet-nut compatibility. ER16 uses a different collet interface and must be ordered as a separate model.
The published operating-speed range is 10,000–24,000 RPM at a stated 400Hz rating. A compatible VFD should be selected and programmed using the spindle nameplate values for the purchased voltage option. Low-speed torque and permissible duty should be evaluated separately from maximum speed.
The main listing offers 110V and 220V options, with 8A shown as the published current value. The VFD input voltage and its motor-side output settings are separate design choices: do not connect this high-frequency motor directly to ordinary mains power.
The motor has a square body with mounting provisions. Confirm the published 242 × 90 × 105 mm outer dimensions against a drawing, including bolt-hole centres and Z-axis clearance, before modifying an existing CNC router.
The air-cooled construction does not require a separate water-cooling circuit. Keep the motor ventilation path open and maintain appropriate dust extraction when engraving wood, plastics or composite materials.
Connection to GRBL or another CNC controller depends on the chosen VFD communication and speed-control interfaces. The spindle itself does not directly interpret G-code; the controller sends appropriate commands to the VFD.
The manufacturer describes four upgraded bearings and precision balancing. Bearing choice, rotor balance, toolholder fit and proper installation all influence measured runout, sound and tool life. Buyers requiring inspection-grade concentricity should request a test report and measurement conditions.
Request Motor Drawings and Integration Support
Rotor balance helps reduce vibration generated by the rotating assembly, while accurate installation and correctly clamped cutters support consistent machining. Vibration can also arise from machine structure, collets and workholding.
The motor description lists four steel bearings and copper motor windings. Service life varies with RPM, motor loading, temperature, contamination and maintenance; buyers should not assume a fixed operating-life figure without agreed conditions.
| Featured Zhong Hua Jiang spindle | Reference spindle illustration |
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| Manufacturer-stated comparison value: runout below 0.005 mm; obtain measurement method and inspection report. | Reference comparison value: runout 0.05 mm; not a universal value for competing products. |
Runout measurements should identify whether the reading was taken at the bare spindle taper, collet or cutting-tool shank and under what test conditions. Cutter runout during machining can exceed a no-load spindle measurement.
The published package listing includes a pre-soldered aviation cable and describes mounting provisions in the square housing. VFD wiring, protective earthing and parameter verification should be completed by a qualified installer.
The motor-only configuration includes the following listed components. Check the confirmed invoice or quotation for the supplied cable, tools and any optional VFD or mounting accessories.
| 1 × | 1.5kW square air-cooled spindle motor |
| 1 × | Pre-soldered aviation cable (listed with the motor); two wrenches are additionally described in the technical table |
| VFD compatibility: operate with a suitable 400Hz VFD; the inverter is not included in the stated motor-only package |
For workshop and wholesale enquiries, specify the destination country, machine configuration, voltage requirement, VFD model if applicable and expected quantity. This enables a quotation matched to the requested supply scope.
Request Standalone Spindle or Complete VFD Kit
Compare alternative spindle motor models by collet system, power, body shape, mounting requirements and compatible VFD ratings. The linked product pages may offer motor-only or kit configurations separately.
Huajiang states that its spindle motor manufacturing activities began in 2000 and subsequently expanded to VFD equipment and CNC engraving machines. The Zhong Hua Jiang brand was established in 2018.
The company describes experience in producing CNC engraving spindle motors, variable frequency drives and related CNC products. Its published introduction references a registered air-cooled spindle series patent, number 200730184245.5; documentation can be requested where required for supplier qualification.
For distributors and equipment manufacturers, Zhong Hua Jiang discusses component selection, OEM/ODM requirements, technical documentation and commercial terms based on the proposed order.
In addition to spindle motor manufacturing, the company offers related drive equipment, CNC accessories and machine components for professional workshops, system integrators and distribution partners.
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| Quality Control Component inspection and quality checks described by the manufacturer. | Patents and Manufacturing Air-cooled spindle product development and published patent reference. | Brand and Export Experience Zhong Hua Jiang product range and overseas market experience. |
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| Factory-Direct Discussions Request model-specific pricing and conditions. | Technical Communication Confirm VFD settings, wiring and drawings. | Shipping Coordination Confirm lead time, packing and delivery terms for each order. |
The Zhong Hua Jiang CNC router range includes compact machines such as 3018, 3020 and 3040 models as well as larger equipment classes. Choose a spindle suitable for the machine structure and control system.
The company offers different motor power ratings, round and square configurations, ER collet sizes and cooling arrangements. Compare the spindle interface and VFD requirements for each product.
Relevant accessories include wiring, probes, limit switches and other components used in CNC machine integration. Select cables according to their electrical ratings, shielding and installation conditions.
Stepper motors and motion components are also part of the broader CNC equipment range for multi-axis positioning applications.
The documentation image below is provided as a visual reference. Buyers requiring model-specific compliance documents should request the current certificate, scope, issuer and applicable product identification.
Customer feedback images can help prospective buyers review previously shared experience. Performance of the selected spindle depends on the installation, machining conditions and individual unit.
Contact Zhong Hua Jiang for a Spindle Quote
This product is offered as a square ER11 1.5kW spindle motor. ER16 is a different collet format available in other spindle models. Please confirm the actual collet nut and spindle nameplate before placing an order.
The published packing list describes a motor-only configuration and states that a 400Hz-compatible VFD should be used. It does not list a VFD as included. If you require both components, request a spindle-and-VFD kit quotation.
Select an inverter with a suitable power rating, input supply and output specifications that match the motor nameplate, including the listed 400Hz rating. Confirm motor wiring, protective earthing and VFD parameters before energizing the spindle.
The published spindle specification is 10,000–24,000 RPM. Practical minimum speed and available cutting torque depend on the permitted motor operating range, load and configured inverter.
The main product listing gives 242 × 90 × 105 mm and 4.3kg. Confirm measurements against the current product drawing. Obtain the current dimensional drawing and shipping weight before choosing brackets or Z-axis components.
The motor may be used for controlled engraving or light passes on suitable soft metals, provided the CNC frame is rigid and the operator selects appropriate cutters, feeds, workholding and chip management. Heavy cutting capability cannot be determined from motor wattage alone.
Compatibility must be checked individually. The machine needs suitable mounting points, enough Z-axis support for the spindle weight, clearance for the square housing and an appropriate high-frequency VFD. A standard round-body spindle mount is not interchangeable with the square housing.
GRBL compatibility depends on the external VFD and the available speed-control or run-command interfaces. The motor itself is not directly controlled by GRBL. Confirm signal levels and wiring with the applicable controller and VFD manuals.
No external coolant pump or water circuit is required for the air-cooled motor. Keep the airflow path unobstructed and provide dust collection appropriate to the material being machined.
Match the collet size to the actual cutter-shank diameter and confirm that the collet and nut correspond to the delivered ER11 interface. Do not assume an ER16 collet fits this motor.
The comparison illustration cites a spindle runout below 0.005 mm. For precision-critical orders, ask for a measured runout report defining the test point, spindle condition and method. Tool-tip runout may differ from spindle runout.
The packing information lists one square 1.5kW spindle motor and one pre-soldered aviation cable; the specification table also refers to two wrenches. The final accessory count should be checked against the quotation and packing list.
Zhong Hua Jiang invites distributor, reseller and wholesale enquiries. Provide the intended market, product version and estimated order quantity to discuss quotations and commercial terms.
The company discusses OEM and customization requirements, including branding, packaging and selected product configurations. Feasibility and minimum order quantities should be confirmed for the proposed changes.
The supplier indicates that the supplier may consider small trial orders for standard products, while custom-order MOQ is discussed case by case. Request a current quotation for the selected version and quantity.
The supplier publishes indicative production periods of 3–7 working days for standard products and 10–20 days for larger or customized orders. Actual availability, production time and transport time must be confirmed at order placement.
The supplier describes a 12-month warranty and technical support. Ask for the current written warranty conditions, covered components and claims procedure for your purchase.
Contact Zhong Hua Jiang with the motor model, intended supply voltage, VFD type, installation drawing and CNC controller details so the correct documents and technical support requirements can be discussed.
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